Did you ever actually read the candidate statements written for the hereditary by-elections whenever a new spot opened up in the Lords?

Seriously, they're worth a read. A collection of posh nobodies all with a 'long career in business/finance' but rarely any particular concrete achievements to talk about. My favourite is Earl Dudley, who stands at every single opportunity seemingly only in a desperate attempt to promote his semi-pornographic youtube channel.

Sortition sounds great in theory, but I don't think it's well-suited to a permanent chamber. Use it for citizens juries, or appoint a time-limited jury to scrutinise a single reading of each bill, similar to the work of a select ctte today.